The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2018
Filed:
Aug. 24, 2017
Union Tank Car Company, Chicago, IL (US);
Union Tank Car Company, Chicago, IL (US);
Abstract
A manway assembly for a railroad tank car features a nozzle defining a central opening and having a sidewall, a cover, a hinge attaching the cover to the nozzle, and a seal assembly to seal the cover to the nozzle. The seal assembly may include a circumferential seal and a circumferential seal channel. The circumferential seal may include a top portion, a bottom portion opposite the top portion, and a side portion between the top portion and the bottom portion. An underside edge portion of the cover may be provided with the circumferential seal channel. The circumferential seal may be positioned within the circumferential seal channel. The circumferential seal may have a C-shaped cross section and may be positioned in the circumferential seal channel such that the top portion of the seal is seated against a top wall of the circumferential seal channel and the bottom portion of the seal is seated against a circumferential ledge of the nozzle.